Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-0a83a382-1218-11f0-8a9b-002248257e55

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

c0d62eec

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-311b2207-4933-4b08-a435-c1cc43ea021f

Comm: tcp://127.0.0.1:41109	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:33285	Total threads: 1
Dashboard: http://127.0.0.1:32947/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:37365
Local directory: /tmp/dask-scratch-space/worker-_thldl3l

Worker: 1

Comm: tcp://127.0.0.1:43945	Total threads: 1
Dashboard: http://127.0.0.1:44291/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:33117
Local directory: /tmp/dask-scratch-space/worker-r9xvmlm5

Worker: 2

Comm: tcp://127.0.0.1:35309	Total threads: 1
Dashboard: http://127.0.0.1:33119/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:44853
Local directory: /tmp/dask-scratch-space/worker-00lfezjt

Worker: 3

Comm: tcp://127.0.0.1:44499	Total threads: 1
Dashboard: http://127.0.0.1:44297/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:36467
Local directory: /tmp/dask-scratch-space/worker-td7vzvav

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)